OPTICALLY BIASED FREQUENCY DOUBLER FOR NONCONTACT HARMONIC TRANSPONDERS

被引：0
|
作者：
Tahir, Nazifa [1 ]
Brooker, Graham [1 ]
机构：
[1] Univ Sydney, Australian Ctr Field Robot, Darlington, NSW, Australia
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2014年 / 56卷 / 01期
基金：
澳大利亚研究理事会;
关键词：
microwave circuits; photodiodes; tracking; transponders; wireless sensors; radar cross section; INSECT TRACKING; RADAR;
D O I：
10.1002/mop.28048
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An optically biased Schottky diode frequency doubler has been fabricated and tested that shows an increase in conversion gain over unbiased variants under moderate and high illumination. The diode of the doubler is biased at the knee current by an optical bias that is a coupled photodiode instead of a conventional external bias by a power supply. This ensures the continuing operation of the diode under low radio frequency (RF) signal conditions and an operating point independent of incident RF power. The optically biased doubler can be used for developing noncontact harmonic transponders with improved radar cross section. (c) 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:233-236, 2014
引用
收藏
页码：233 / 236
页数：4
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